<template>
  <div class="checkout-address">
    <div class="text">
      <div v-if="!showAddress" class="none">
        您需要先添加收货地址才可提交订单。
      </div>
      <ul v-if="showAddress">
        <li>
          <span>收<i />货<i />人：</span>{{ showAddress.receiver }}
        </li>
        <li><span>联系方式：</span>{{ showAddress.contact }}</li>
        <li>
          <span>收货地址：</span
          >{{
            showAddress.fullLocation.replace(/ /g, '') + showAddress.address
          }}
        </li>
      </ul>
      <a
        v-if="showAddress"
        @click="openAddressEdit(showAddress)"
        href="javascript:;"
        >修改地址</a
      >
    </div>
    <div class="action">
      <XtxButton class="btn" @click="openDialog()">切换地址</XtxButton>
      <XtxButton class="btn" @click="openAddressEdit({})">添加地址</XtxButton>
    </div>

    <xtx-dialog title="切换收货地址" v-model:visible="dialogVisible">
      <div
        class="text item"
        :class="{ active: selectedAddress && item.id === selectedAddress.id }"
        v-for="item in list"
        :key="item.id"
        @click="selectedAddress = item"
      >
        <ul>
          <li>
            <span>收<i />货<i />人：</span>{{ item.receiver }}
          </li>

          <li><span>联系方式：</span>{{ item.contact }}</li>

          <li>
            <span>收货地址：</span
            >{{ item.fullLocation.replace(/ /g, '') + item.address }}
          </li>
        </ul>
      </div>
      <!-- vue3.0 仅支持v-slot+template写法 -->
      <template v-slot:footer>
        <XtxButton
          type="gray"
          style="margin-right: 20px"
          @click="dialogVisible = false"
          >取消</XtxButton
        >
        <XtxButton type="primary" @click="confirmAddress()">确认</XtxButton>
      </template>
    </xtx-dialog>

    <addressEdit ref="addressEdit" @on-success="successHandler" />
  </div>
</template>
<script>
import addressEdit from '@/views/member/pay/components/address-edit'
import { ref } from 'vue'
export default {
  name: 'CheckoutAddress',
  components: {
    addressEdit
  },
  props: {
    list: {
      type: Array,
      default: () => []
    }
  },
  // 1. 在拥有根元素的组件中，触发自定义事件，有没有emits选项无所谓
  // 2. 如果你的组件渲染的代码片段，vue3.0规范，需要在emits中申明你所触发的自定义事件
  // 3. 提倡：你发了自定义事件，需要在emits选项申明下，代码可读性很高
  emits: ['change'],
  setup(props, { emit }) {
    // 显示的地址
    const showAddress = ref(null)
    if (props.list.length) {
      const defaultAddress = props.list.find(item => item.isDefault === 1)
      if (defaultAddress) {
        showAddress.value = defaultAddress
      } else {
        // eslint-disable-next-line vue/no-setup-props-destructure
        showAddress.value = props.list[0]
      }
    }
    // 对话框显示隐藏
    const dialogVisible = ref(false)
    // 打开对话框
    const openDialog = () => {
      dialogVisible.value = true
      selectedAddress.value = null
    }
    // 确认地址
    const confirmAddress = () => {
      dialogVisible.value = false
      showAddress.value = selectedAddress.value
      // 默认通知一个地址ID给父
      emit('change', showAddress.value?.id)
    }
    // 选择的地址
    const selectedAddress = ref(null)

    const addressEdit = ref(null)
    const openAddressEdit = address => {
      addressEdit.value.open(address)
    }

    // 成功
    const successHandler = formData => {
      const editAddress = props.list.find(item => item.id === formData.id)
      if (editAddress) {
        // 修改
        for (const key in editAddress) {
          editAddress[key] = formData[key]
        }
      } else {
        // 添加
        const json = JSON.stringify(formData) // 需要克隆下，不然使用的是对象的引用
        // eslint-disable-next-line vue/no-mutating-props
        props.list.unshift(JSON.parse(json))
      }
    }

    return {
      showAddress,
      dialogVisible,
      openDialog,
      confirmAddress,
      selectedAddress,
      addressEdit,
      openAddressEdit,
      successHandler
    }
  }
}
</script>
<style scoped lang="less">
.checkout-address {
  border: 1px solid #f5f5f5;
  display: flex;
  align-items: center;
  .text {
    flex: 1;
    min-height: 90px;
    display: flex;
    align-items: center;
    .none {
      line-height: 90px;
      color: #999;
      text-align: center;
      width: 100%;
    }
    > ul {
      flex: 1;
      padding: 20px;
      li {
        line-height: 30px;
        span {
          color: #999;
          margin-right: 5px;
          > i {
            width: 0.5em;
            display: inline-block;
          }
        }
      }
    }
    > a {
      color: @xtxColor;
      width: 160px;
      text-align: center;
      height: 90px;
      line-height: 90px;
      border-right: 1px solid #f5f5f5;
    }
  }
  .action {
    width: 420px;
    text-align: center;
    .btn {
      width: 140px;
      height: 46px;
      line-height: 44px;
      font-size: 14px;
      &:first-child {
        margin-right: 10px;
      }
    }
  }

  .xtx-dialog {
    .text {
      flex: 1;
      min-height: 90px;
      display: flex;
      align-items: center;
      &.item {
        border: 1px solid #f5f5f5;
        margin-bottom: 10px;
        cursor: pointer;
        &.active,
        &:hover {
          border-color: @xtxColor;
          background: lighten(@xtxColor, 50%);
        }
        > ul {
          padding: 10px;
          font-size: 14px;
          line-height: 30px;
        }
      }
    }
  }
}
</style>